Build KernelSU as LKM (#1254)

Co-authored-by: weishu <twsxtd@gmail.com>

manager/app/src/main/java/me/weishu/kernelsu/Kernels.kt

@@ -37,6 +37,23 @@ fun parseKernelVersion(version: String): KernelVersion {
     }
 }
 
+fun parseKMI(input: String): String? {
+    val regex = Regex("(.* )?(\\d+\\.\\d+)(\\S+)?(android\\d+)(.*)")
+    val result = regex.find(input)
+
+    return result?.let {
+        val androidVersion = it.groups[4]?.value ?: ""
+        val kernelVersion = it.groups[2]?.value ?: ""
+        "$androidVersion-$kernelVersion"
+    }
+}
+
+fun getKMI(): String? {
+    Os.uname().release.let {
+        return parseKMI(it)
+    }
+}
+
 fun getKernelVersion(): KernelVersion {
     Os.uname().release.let {
         return parseKernelVersion(it)